0845 309 6224

Rubber Mouldings, Bellows and Grommets... Your Design

Rubber Coupling Mouldings

Custom Rubber Mouldings and Rubber Component Manufacturers

Knowledge comes from experience; BR Defence has over 4700 different moulded rubber component lines that have been manufactured over a 30 year period. From Rubber bellows to Baby feeders, with production runs from 1 off to 100 000 off.

BR Defence works closely with many industry sectors, manufacturing their rubber and polymer components using a wide range of materials for diverse applications and conditions.

BR Defence (Rubber Moulders) currently manufacture rubber moulding for the following industries:

  • Defence (inc UK MoD)
  • Aerospace
  • Motorsport (Inc Formala One, Le Man, World Supper Bike and WRC)
  • Medical
  • Automotive (With DLF and KanBan Services)
  • Marine (Naval and Private)
  • Glass
  • Historic Restoration (Using reverse engineering and low production runs)
  • General Industry

Moulding Capabilities

BR Defence has 29 high pressure rubber manufacturing presses with working platen sizes ranging from 0.3 x 0.3 metre to 0.9 x 1.0 metre. This provides BR Defence with great flexibility with product size and weight, as well varied production quantities of each component. The factory has a number of development presses for very low quantities and prototyping.

Types of Rubber Mouldings

Rubber and Silicone O-Rings and O-Section Seals

Using precision rubber blanking, vacuum technology during manufacture and cyrogentic freeze trimming, BR Defence is able to manufacture near flashless custom O Ring and O section seals to your specifications manufactured from a wide range of materials. We currently manufacture O rings down to 0.5 mm in cross section with our largest cross section to date for 4.5cm with a 30cm OD. Please feel free to contact us.

Square Section seals and Square Section Rings

BR Defence has many methods to manufacture square section seals and square section rings. These seals can be moulded using compression or injection moulding, or they can be cropped using "Die-Cut Gasket" cutting technology (see gasket manufacture for more details).

Rubber Bellows, Boots and Gaiters

Rubber Bellows, Boots and Gaiters can all be manufactured in a wide range of materials and Sizes. We do ask that designs do take into account the material, as some materials are too ridge to be moulded into bellows. We are very happy to look at your design as suggest improvements that will keep the manufacturing cost down and provide you with a functional rubber product.

Rubber to Metal Bondings and Rubber Coating

BR Defence has many years experience in manufacturing rubber to metal bondings for all applications. We have the technology and experience to bond many different rubbers and silicone rubbers to a wide range of metals including: Copper, Steel, Stainless steel, Aluminium, Brass and Iron. Our in house surface preparation and cleaning faculties put us in a very good position to develop and manufacture your rubber to metal bondings. Examples of Moulded rubber to metal bondings are:

  • Suspension Bushes
  • Rubber coated shims
  • Rubberised Tracks/Moulded Tracks
  • Bonded drive wheels/Rubberised wheels
  • Suspension Cones and bonded rubber shock absorbers
  • Anti-Vibration Mounts
  • Metal re-enforced Rubber seals
  • Rubber bonded CV Boots and drive seals

Moulded Rubber Straps

BR Defence manufacture a wide range of rubber straps for many customers to be used in wide range of strap applications. If you have a custom rubber strap enquiry please feel free to contact us.

We also have a range of Standard Moulded Rubber Straps.

The standard rubber strap range comes in Natural Rubber 60 hard, with a 3 cm wide x 1 cm deep wire loop at either end. All Rubber Straps are 2.5 cm in width and 0.3 cm in section. The lengths can be seen below:

  • 30 cm Rubber Strap (12-Inch Strap)
  • 25.5 cm Rubber Strap (10-Inch Strap)
  • 23 cm Rubber Strap (9-Inch Strap)
  • 20 cm Rubber Strap (8-Inch Strap)
  • 15 cm Rubber Strap (6-Inch Strap)
  • Metal loops are moulded in to the rubber strap during the moulding process for maximum strength.

Our Rubber Straps are used in many applications, for example:

  • Battery Retainer Straps
  • Radio Retainer Straps
  • Air Box Straps
  • Rubber Bonnet Straps
  • Fire Extinguisher Straps
  • Tie Down Rubber Straps

If you require one of our standard sizes in a custom or different rubber, please feel free to contact us.

Rubber Grommets and Rubber Bumps Stops

BR Defence Manufacture many rubber 'Grommets' and rubber 'Bump-stops' in a wide range of rubbers and silicones for a wide range of applications. We are able to work with you to develop the right material for your needs, we can even make the same shape grommet or bump stop but in different rubber harnesses using different coloured rubbers for colour coding. This is very popular with race teams who require similar parts but with different vibration or stiffness set-ups.

Product quality comes from investment in process.

Investment in precision control measures ensure material preparation, manufacturing and product finishing are to the highest standards which also reduce errors caused from process deviation.

This along with a culture of wanting to get it right and get it out on time has proven to be a very successful combination that delivers what customers ask for.

BR Defence is a rubber manufacturer with it's sights firmly set continues improvement. Refinement of the rubber manufacturing techniques expose and remove wastes, This keeps us lean with less down time allowing us to provide better, faster service and value to our customers.


  • Injection moulding
  • Compression moulding
  • Transfer moulding
  • Food quality mouldings
  • Water quality mouldings
  • Flame retardant mouldings
  • Full in-house cryogenic de-flashing, trimming and finishing facilities
  • Custom moulding design
  • Hand built fabrications
  • Gasket cutting
  • Gasket stamping
  • Extrusion
  • Rubber to metal bonding
  • Water cut gaskets and seals
  • Laser Cut Gaskets and seals
  • Rubber Cord
  • Silicone sponge cord
  • Silicone cord
  • CAF 4 Silicone bond
  • Silicone sheeting
  • Rubber sheets spec grade
  • Commercial rubber sheeting


Quantitles range from:

  • 1 off
  • 10 off
  • 1000 off
  • 100 000 off
  • Continuous manufacture.


Sizes of rubber mouldings can range from:

0.05 Grams to 4 KG (So Far)
0.5mm to 0.9 x 0.9 metres


Materials ranging from:

  • Natural Rubber Grades (to BS, Def Stan and Q.X. Grades)
  • Silicone Elastomers (ranging from 10 I.R.H.D to 85 I.R.H.D)
  • Fluorocarbon Rubber / Viton (*) (Dupont) Rubber Grades (ro many D.T.D. Standards)
  • Nitrile Rubber
  • Neoprene (*) Rubber (Dupont) (Chloroprene Elastomers)
  • Fluorosilicone Elastomers
  • Butyl Rubber
  • Hydrin Rubber
  • Polyurethane Rubber (up to 95 I.R.H.D)
  • EPDM Rubbers
  • EP Rubber Polymers

Rubber materials can be blended and milled in house if you require custom grades of rubber.

Contact Info

BR Defence
GU33 7BQ

Tel: 0845 309 6224

Fax: 01730 894344